BUSINESS SEGMENT - Schedule of Revenue by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 20,744	$ 15,820	$ 53,600	$ 42,991
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	16,785	12,421	40,900	32,532
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 3,959	$ 3,399	$ 12,700	$ 10,459